Apparatus for setting saw-teeth.



Patented Aug. 13, 190i.

(Application filed Mar. 14, 1901.)

3 Shets-Sheet I.

(No Model.)

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. Patented Au 13, l90l. J. GOTTSMANN.

APPARATUS FOR SETTING SAW TEETH.

(Application filed Mar. 14, 1901.

3 sheets-sheet 2.

(No Model.)

'INVENTORI JGSEPH @GTWWANN d vawzafl I ATTOR Y no. 680,484. Patented AuI3, I90I.

J. GE ITTSMANN. APPARATUS FOR SETTING SAW TEETH, (Appliation filed Mar.14, 1901. I (No Model.) 3 Sheets'$heet 3.

WITNESSES: INVENTOR'.

fif j JW. 4' sEPi-i QTTSMANN I ATIORNEY- m: uumus PETERS o0. mo'roummwnmmfou, n. c.

JOSEPH GOTTSM ANN, OF

ATENT NEWARK, NEW JERSEY.

APPARATUS FOR SETTING SAW- TEETH.

SPECIFICATION formingpart of Letters Patent N 0. 680,484, dated August13, 1901.

Application filed March 14,1901- To all whom, it ntay concern: 7

Be it known that I, JOSEPH GOTISMANN, a citizen of the United States,residing at New ark, in the county of Essex and State of New Jersey,have invented certain new and useful Improvements in Apparatus forSetting Saw- Teeth; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, and to figuresof reference marked thereon, which form a part of this specification.

This invention has reference to improvements in that class of machinesemployed for the setting of the teeth of saws; and the present inventionhas for its primary object to provide a novel and simply-constructedmachine for the purposes of setting the teeth of either band or circularsaws whereby this work can be accomplished very rapidly and with aminimum cost of expense.

The invention has for its further object to provide, in connection withthe saw-set hereinafter more fully described, an adjusting mechanism forfeeding the saw-teeth beneath the setting-hammer, which mechanism can beset to enable the same to be employed with saws having small or largeteeth and still be effective for properly setting the saw-teeth.

The invention therefore consists in the novel construction of machinefor setting saw-teeth, hereinafterset forth; and, furthermbre, theinvention consists in such novel arrangements and combinations of partsas will be more fully described in the accompanyingspecification andthen finally embodied in the clauses of the claim.

The invention is clearly illustrated in the accompanying drawings, inwhich Figure l is a plan or top view of the apparatus, and Fig. 2 is aside elevation of the same, both views showing the apparatus in use forthe setting of the teeth'of a band or fiat saw. Fig. 3 is a longitudinalvertical section of the apparatus, said section being taken on line 3 3in Fig. 1 of the drawings and representing the setting-hammer in itsraised position about to be brought down upon a saw-tooth which isarranged over the anvil of the apparatus. Fig. 4 is a vertical SerialNo. 51,066. (No model.)

cross-section taken on line 4 a of said Fig. 3 looking in the directionof the arrow 41:; and Fig. 5 is a horizontal section of the frontportion of the apparatus, the said section being taken on line 5 5 inFig. 2 and lookingin the direction of the arrows y insaid figure. Fig. 6is a plan or top view of the feeding mechanism for feeding a band sawlaterally across the saw-table and the teeth thereof above the anvil,the said mechanism in this view being shown in its set position forfeeding the saw in an opposite direction laterally across the apparatusfrom that represented in Fig. l of the drawings. Fig. 7 is a front endview of the apparatus with the saw-table removed. Fig. 8 is a plan viewof the apparatus, illustrating its use for setting the teeth of circularsaws; and Fig. 9 is a vertical cross-section taken on line 9 9 in saidFig. 8 looking in the direction of the arrow .2 in said figure,illustrating more particularly a mandrel carrier or spindle and mandrelfor rotatively arranging the circular saw in position upon the saw-tableof the apparatus.

Similar numerals of reference are employed in all of the saidabove-described views to indicate corresponding parts.

In the said drawings, 1 indicates any suitable base or bed of theapparatus which is provided at the front with a downwardly-projectingrib or plate 2, provided, as will be seen from Fig. 7, with thescrew-holes 3 for the reception of screws or bolts, by means of whichthe apparatus can be secured in position upon a suitable bench or table4:, as represented in Fig. 2 of the drawings, or by means of which ribor projection 2 the said apparatus can be arranged and held in the jawsof an ordinary vise, if desired. At or near the forward edge of the saidtable 1 and directly above the said rib or projection 2, as will be seenmore particularly from an inspection of Fig. 3 of the drawings, are apair of upwardly-extending projections or holding-jaws 5 and 6, betweenwhich is removably arranged and held in position by means of a set-screw7 or in any other suitable manner ting-hammer. Upon a cross-piece 10 orother able position upon said pin and between V of the several figuresof the drawings.

the forward ends of the arms 13 by a projection or lug 18 of a dog 17,which is secured against the one side of one of said arms 13 when thepin 19 is screwed up tightly by means of the head and nut on said pin,as will be clearly understood from an inspection The hammer 16 can thusbe held in the inclined position indicated in Figs. 2 and 3, with theback edge of the hammer resting against the lug 18, as shown in Fig. 2,and held in its adjusted position, according to the angular set of thesaw-tooth desired, by firmly tightening up the forward ends of the saidarms 13 against the sides of the hammer 16, when the pin 19 is screwedin the screw-threaded perforation in the forward end of the one arm 13by means of the head and nut on said pin. The said hammer 16 ispreferably made wider at the top than at the bottom, being formed. atthe bottom with the cliamfered sides 20, as shown in Fig. 7, whereby thehammer can be used for setting small saw-teeth. The said setting-hammer16 and its pivoted or fulcrumed arms 13 are actuated by means of atripping mechanism. (Illustrated more particularly in Figs. 1, 2, and 3of the drawings.) This tripping mechanism consists,essentially, of aratchet-wheel 21, which is suitably secured in a fixed position upon ashaft 22, the said shaft 22 being rotatably arranged in the bearings ofa pair of uprights or posts 23, extending in an upward direction at theback of the said bed or plate 1 of the apparatus. The said shaft orspindle 22 may be rotated by means of a pulley 25 by power, whereby theteeth 24 of the said ratchet-wheel 21 are successively brought insliding engagement with the pin 11 at the back of the said arms 13, andsaid arms 13 and hammer are raised, as shown in Fig. 3. When the hammerhas been raised and the engaging tooth of the ratchet-wheel 21 haspassed the pin 14, a pair of springs 26, which have their respectiveends connected with a pin 27 between the arms 13 and a pin 28 on the bedor plate 1, will cause the striking edge of the hammer 16 to be broughtwith great force upon the saw-tooth placed beneath the hammer and abovethe beveled edge 9 of the anvil 8,whereby said tooth will be thrown outto one side of the sawblade, and thus become set. When it is desired toactuate the arms 13 and their hammer 16 by hand, the said ratchetwheel21 is formed with a recessed part 29,

thereby providing a suitable chamber, as will be clearly seen from Fig.3 of the drawings, the said chamber being provided in its innercylindrical surface with a number of steps or tooth-like parts 30, asshown. Loosely ar ranged upon the shaft or spindle 22 within the saidrecessed part 29 or chamber of said ratchet-wheel 21 is a disk 31, whichis provided in its cylindrical edge with a socket 32, in which isarranged and partly projects from said socket a stud or pin 34, the saidpin 34: being forced in sliding contact with the inner surface and withthe tooth-like parts 30 by a suitable spring 33. The said disk 31 isalso formed at the one side with an annular flange 35, which is providedat one side with a socket 36 for the receptionof the end 38 of anactuating-lever 37. Thus when the parts are in theirnormally-inoperative positions (indicated in Fig. 2) and the end 38 ofthe handle 37 is inserted in the socket 36 a down ward movement of saidhandle by pressure brought to bear thereon will rotate the disk 31 onthe spindle or shaft 22 until the stud 34L comes in contact with one of,the tooth-like parts or stops 30 of the ratchetwheel 21, whereby saidwheel 21 is then rotated with the said spindle 22, bringing one of itsteeth or ratchet-s 24 in operative engagement with the pin 14: forraising the arms 13 and their hammer in the manner hereinabove setforth. The lever 3.7 can then be returned to its former position,causing the stud to slide over the inner surfaces of the stops 30without actuating the disk or ratchet-wheel 21, as will be evident,until said lever 37 is again depressed for the next setting action ofthe hammer. In order that the tripping mechanism may be capable of anadjustment longitudinally upon the face of the bed 1 of the apparatus,the uprights or posts 23 are connected at or near the bottom with acrosspiece 39, from the bottom of which extends a lug 40, which fits inan opening 41 in the said base or bed 1, as shown in Fig. 3. A suitablewasher 42 and set-screw 43 are employed for securing the said partssecurely in their adjusted position on said base or bed 1. Thelongitudinal movement of the part 39 and the posts or uprights 23thereon is produced by a suitable adjusting-screw 44:, having a head 15and annular shoulder 46, by means of which it is rotatably arranged inthe slotted bearing 47, and the screw end 48 of said screw works in ascrew-threaded hole in the said cross-piece 39. It will thus be seenthat when the adjusting-screw 44 is turned it remains in itsrotatively-fixed position, while the cross-piece 39 and posts thereoncan be moved back and forth and are properly adjusted to provide for theproper sliding engagement of the teeth 24 of the ratchet-wheel 21 withthe pin 14 of the ham mer-arms 13. This adjustment variesthe point atwhich the trip-tooth 24 engages and disengages with-the pin 14, wherebythe operator can suitably ad- IIO just the lift of the hammer andregulate the force of the blow to be delivered upon the saw-tooth.

I will now describe the arrangement and construction of thesaw-supporting table and actuating and adjusting mechanism connectedtherewith.

On opposite sides of the base or bed 1 of the apparatus are a pair ofperforated guides 49, in each of which is slidably arranged, so as tomove in longitudinal directions, guiderods 50, the said rods 50 havingtheir forward ends secured in perforated lugs or projections 52 by meansof set-screws 53 to a yokesupport 51, substantially as illustrated inFigs. 2, 5, and 8 of the drawings. The said guide-rods 50 can be securedin their adjusted position by means of set-screws 54, which are screwedinto the guides 49, as represented more particularly in Fig. 5. Theforward connecting member 55 of the yoke-support is provided with acurved slot 56, as shown, and adj ustably arranged upon the uppersurface of said member 55 and above said curved slot 56 is a support 57,preferably made in the manner of an inverted cone, the apex of which hasbeen cut away to provide a frustum of a cone. This cone-shaped support57 is provided with a correspondingly-shaped chamber 58, in which is anupwardly-extending stem or mandrel-carrier 59, which is provided at itsupper portion with a screw-thread 60 and a nut 61. The under surface ofthe support 57 is provided with a downwardly-extending screw-threadedstud or post 62, which passes into and extends through the slot 56 inthe member 55 and has a nut 63 on its free end for securely fasteningthe support in its adjusted position upon the upper surface of the saidmember 55. Resting directly upon the upper surface of the support 57 andsuitably held in position thereon by means of the.

mandrel-carrier 59 and a cone-shaped mandrel 64 is the saw-table 65. Thesaid sawtable 65 is also provided on its under side withdownwardly-extending pins or posts 66, which project into and throughthe slot 56 in the member 55 and are for the purpose of retaining thesaw table or platen 65 in its approximately adjusted position beforebeing securedin place by means of the nut 61. The said table 65 isfurther provided with an arrangement of screw-threaded holes 67, (seeFig. 5,) in either of which can be screwed the thumb screws 68, whichextend into and through slots or openings in a saw-holding plate 69,beneath the forward end of which and a pair of flat springs 71, securedto said plate 69, the fiat band or other saw-blade is arranged andsecured in position, with the teeth of the saw-blade arranged to bemoved laterally across the top of the anvil 8. That the said saw blademay be moved laterally the said holding or retaining plate 69 isprovided at its forward edge and in its under surface with a groove 72,in which the blade is arranged and can slide, as will be clearly evidentfrom an inspection of Fig. 3. The slotted arrangement of theretaining-plate 69 and the possibility of securing the thumbscrews 68 ineither of the screw-holes 67 allows of a large range of adjustment forretaining saw-blades of different widths and different sizes-ofsaw-teeth in the saw-blade retaining groove 72 in the forward edge ofthe plate 69.

The mechanism for feeding the saw-blade laterally across the apparatus,either to the right, as indicated in Fig. 1, or to the left, asindicated in Fig. 2, consists, essentially, of a frame 73, which issecured, by means of the screws 75, upon the projection or jaw 6 of thebase or bed 1 and has a pair of rearwardlyextending members 74. At ornear the rear end of each member 7et is a pivot 76, and upon each pivot76 is placed a suitably-constructed bell-crank 77. Each bell-crank 77comprises a pair of arms 78 and 79. At or near the free end of each arm79, movably arranged upon a pivot 80, is a dog 81, each dog beingprovided with a sharp edge 82, which can be brought in engagement with asaw-tooth for laterally moving the saw across the anvil of theapparatus. Each dog 81 is provided with a suitable projection, as 83,against which can be brought the flat springs 84, which are secured inposition upon the respective arms 79 by the screws 85. From aninspection of Figs. 1 and 6 it will be seen that these two dogs 81 canbe set either as shown in said Fig. 1, whereby the saw-blade will bemoved laterally across the apparatus from the right to the left, or asshown in Fig. 6, whereby the saw-blade can be moved across the apparatusin the opposite direction, or from the left to the right. To cause thedog 81 to engage a saw-tooth and feed the saw-blade laterally above theanvil after the one saw-tooth has been set and bring another saw-toothabove the anvil for setting said tooth, the arms 78 of the bell-cranks77 are connected with links 86, which are pivotally connected at theiropposite ends by means of the screws 87 to a laterally-extending arm 88of a suitably-constrncted bell-crank S9. Said bell-crank S9 is pivotallyarranged upon a pivotal support or pin 90 in the bearing-lugs 91 of thebase or bed 1 of the apparatus, and the forwardlyextending arm 92 ofsaid bell-crank 89 is pivotally connected by means of a pin 93 with ayoke 9st. To this yoke 94 is secured the lower end of an adjusting-screw95, which extends in an upward direction, as shown, and is secured in anut 96, which is pivotally arranged between the two hammer-arms 13. Thisadjusting-screw 95 is provided at its free end at the top with afinger-piece 97 for turning the same, and being rotatively arranged atthe bottom in a suitable hole in the yoke or saddle 94 said screw can beraised or lowered in its nut 96, whereby the arm 92 of the bell-crank 89is correspondingly raised or lowered, and by this manipulation and thearrangement of the intermediate arms and links ICC connected withthebell-cranks 7 7 the latter are actuated in such a manner that thedogs 81 will receive a greater or shorter stroke or movement, accordingto the size of the sawteeth or the distance the teeth are to be movedlaterally across the top of the anvil for the proper setting of thesame.' Slidably arranged along the edge of the frame 73 are a pair ofadjustable guides 98, each guide being provided with a flange 99,extending at a right angle directly beneath the under surface of thesaid frame 73 and being formed with a screw+threaded lug 100, as shownmore particularly in Fig. 5, the said lugs 100 being movably andadjustably arranged upon the screws 101, which turn in the bearings 102on the under surface of the frame '73 and are manipulated byfingerpieces 103. The purpose of the said guides 98 is to permit thegripping edge 82 of the actuating-dogSl to slide against the same whenthe parts are to remain inactive and while the hammer is being broughtdown upon the previously-adj usted saw-tooth for the setting of thelatter and to prevent the gripping edge of the dog 81 engaging with thenext saw-tooth until said edge 82 has reached the end of said guide, asshown in Fig. 1, and then engages with the saw-tooth at that point forthe proper adjustment and lateral movement of the saw-blade to bring thenext tooth which is to be set directly above the anvil and beneath thedescending hammer.

When the saw-setting apparatus is to be used with circular saws for thesetting of the teeth thereof, all that is necessary is to remove thetable or platen from above the support 57, placing the circular saw onsaid support and arranging the mandrel 64 and the nut 61 upon themandrel-spindle 59 in the manner illustrated in Fig. 9, the frame 51,which is connected with the guide rods or bars 50, in that case havingbeen pulled forward far enough and secured in its adjusted position bythe set-screws 5 f, that the sawteeth of the saw when the same is turnedstep by step by means of the dogs 81 in the manner hereinabove describedwill be brought directly above the anvil 8 and directly beneath thestriking edge of the hammer 16. In all other respects the arrangementsand construction of the remaining parts of the apparatus remain the sameas hereinabove fully set forth, and the respective dogs 81 are set tofeed the teeth of the circular saw directly upon the anvil in eitherdirection, according to which side of the saw-body the saw-tooth is tobe set.

The workings of the several mechanisms comprising the embodiment of mynovel construction of saw-set will be clearly understood from theaccompanying drawings and from the previous description of the same, andit Will be clearly evident that I have devised a simply constructedapparatus in which the alternate teeth of saws of different widths anddifferent sizes of teeth can be effectually set, and the apparatus canbe em ployed both for the setting of the saw-teeth of band-saws as wellas circular saws.

Iam aware that changes may be made in the several arrangements andcombinations of the various parts, as well as in the details of theconstruction thereof, without departing from the scope of my invention.Hence I do not limit my invention to the exact ar rangements andcombinations of the various parts as describedin the accompanyingspecification and as illustrated in the drawings, nor do I confinemyself to the exact details of the construction thereof.

Having thus described my invention, what I claim is- 1. In a saw-set,the combination, with the bed, and anvil, of a vibratory hammezgmeansfor actuating said hammer, and a saw-supporting table, adjustablelongitudinally toward or from the anvil, and means for feeding eachalternate saw-tooth above said anvil, consisting, essentially, of a dogadapted to engage said saw-teeth, mechanism on said bed for actuatingsaid dog, and means connected with said dog-actuating mechanism and saidvibratory hammer, substantially as and for the purposes set forth.

2. In a saw-set, the combination, with the bed, and anvil, of avibratory hammer, means for actuating said hammer, a saw-supportingtable, adjustable longitudinally toward or from the anvil, and means onsaid table for retaining a saw-blade in position, consisting of anadjustable gage 69, having slotted portions and screws for securing saidgage in its adjusted positions upon said table, and means for feedingeach alternate saw-tooth above said anvil, consisting, essentially, of adog adapted to engage said saw-teeth, mechanism on said bed foractuating said dog, and means connected with said dog actuatingmechanism and said vibratory hammer, substantially as and for thepurposes set forth.

3. In a saw-set, the combination, with the bed and anvil, of a vibratoryhammer, means for actuating said hammer, asaW-supporting table on whichthe sawis to be arranged, and means for feeding each alternate saw-toothabove said anvil, consisting, of a spring-actuated dog arranged to beforced inengagement with a saw-tooth and also to be disengagedtherefrom, mechanism on said bed for actuating said dog, and anadjusting means connected with said dog-actuating mechanism and saidvibratory hammer for actuating said do -actuating mechanism and alsoregulatin g the throw of said dog, substantially as and for the purposesset forth.

4. In a saw-set, the combination, with the bed and anvil, of avibratoryhammer, means for actuating said hammer, a saw-supporting tableon which the sawis to be arranged, and means for feeding each alternatesaw-tooth above said anvil, consisting, essentially, of a bell-crank 8.9pivotally arranged upon said bed of the machine, a pair of bell-cranks77,

connecting-links between said bell-cranks 77 and 89, and aspring-actuated dog 81 on each bell-crank 77 arranged to be forced inengagement with a saw-tooth and also to be dis engaged therefrom, and ameans of adjustment for regulating the throw of each dog, substantiallyas and for the purposes set forth.

5. In a saw-set, the combination, with the bed and anvil, of a vibratoryhammer, means for actuating said hammer, a saw-supporting table on whichthe saw is to be arranged, and means for feeding each alternatesaw-tooth above said anvil, consisting, essentially, of a bell-crank 89pivotally arranged upon said bed of the machine, a pair of bell-cranks77, connecting-links between said bell-cranks 77 and 89, aspring-actuated dog 81 on each bellcrank 77 arranged to be forced inengagement with a saw-tooth and also to be disengaged therefrom, and anadjusting-screw connecting said bell-crank 89 with the hammer forregulating the throw of each dog, substantially as and for the purposesset forth.

6. In a saw-set, the combination, with the bed and anvil, of a vibratoryhammer, means for actuating said hammer, a saw-supporting table on whichthe saw is to be arranged, a supporting-frame, means for feeding eachalternate saw-tooth above said anvil, consisting, of a system ofpivotally-arranged bellcranks, a spring-actuated dog 81 pivotallyarranged on one of said bell-cranks, and a guide slidably and adjustablyarranged along the edge of said frame, against which said dog is broughtduring a part of its movement, substantially as and for the purposes setforth.

7. In a saw-set, the combination, with the bed and anvil, of avibratoryhammer, means for actuating said hammer, a saw-supporting tableon which the saw is to be arranged, a supporting-frame, means forfeeding each alternate saw-tooth above said anvil, consisting, of asystem of pivotally-arranged bellcranks, a spring-actuated dog 81pivotally arranged on one of said bell-cranks, a guide slidably andadjustably arranged along the edge of said frame, and means foradjusting said guide, consisting, of a flange 99 on said guide, ascrew-threaded lug 100, and an adjusting-screw 101 arranged in bearingson the under surface of said frame and turning in said lug 100,substantially as and for the purposes set forth.

8. In a saw-set, the combination, with the bed and anvil, of a vibratoryhammer, means for actuating said hammer, guides on said bed, guide-rodsadjustably arranged in said guides, and a saw-supporting means connectedwith said guide-rods, substantially as and for the purposes set forth.

9. In a saw-set, the combination, with the bed and anvil, of a vibratoryhammer, means for actuating said hammer, guides on said bed, guide-rodsadjustably arranged in said guides, a yoke-support secured to saidguiderods, and a saw-supporting table adjustably arranged upon saidyoke-support, substantially as and for the purposes set forth.

10. In a saw-set, the combination, with the bed and anvil, ofavibratoryhammer, means for actuating said hammer, guides on said bed,guide-rods adjustably arranged in said guides, a yoke-support secured tosaid guiderods, provided with a slotted member 55, a support 57 on saidmember 55, a screw-threaded mandrel-carrier connected with said support57, a saw-supporting table on said support 57, and means on saidmandrel-carrier for securing said table in position, substantially asand for the purposes set forth.

11. In a saw-set, the combination, with the bed and anvil, of avibratory hammer, a yokesupport, having a curved slot, connected withsaid bed, means for actuating said hammer, a hollow cone-shaped support57, having a post slidably arranged in said slot, and means on said postfor securing said cone-shaped support in its adjustable position on saidyoke-support, a mandrel-carrier connected with said support, and amandrel 64 on said mandrel-carrier, substantially as and for thepurposes set forth.

12. In a saw-set, the combination, with the bed, provided with a pair ofholding-jaws 5 and o, and guides connected with said bed, of an anvilarranged and held in position between said jaws, guide-rods adjustablyarranged in said guides a yoke-support, having a curved slot, secured tosaid guide-rods, and a vibratory hammer, a hollow cone-shaped support 57having a post slidably arranged in said slot, means on said post forsecuring said cone-shaped support in its adjustable position upon saidyoke-support, a mandrel-carrier connected with said cone -shapedsupport, and a mandrel on said mandrel-carrier, substantially as and forthe purposes set forth.

13. In a saw-set, the combination, with the bed, provided with a pair ofholding-jaws 5 and 6, of an anvil arranged and held in position betweensaid jaws, a saw-supporting table, a vibratory hammer, asupporting-frame 73 sec ured upon said jaw 6, bell-cranks pivotallyarranged upon said frame 73, and springactuated dogs 81 pivotallyarranged upon said bell-cranks, and a connecting means between saidbell-cranks, and the vibratory hammer adapted to actuate saidbell-cranks and force the dogs, in engagement with a saw-tooth, substantially as and for the purposes set forth.

14. In a saw-set, the combination, with the bed, provided with a pair ofholding-jaws 5 and 6, of an anvil arranged and held in position betweensaid jaws, a saw-supporting table, a vibratory hammer, asupporting-frame 73 secured upon said jaw 6, and means on said frame 73for feeding each alternate saw-tooth above said anvil, consisting,essentially, of a bell-crank 89 pivotally arranged upon said bed of themachine, a pair of bell-cranks 77 pivotally arranged on said frame 73,connecting-links between said bell-cranks 77 and 89, and aspring-actuated dog 81 on each bellcrank 77 arranged to be forced inengagement with a saw-tooth and also to be disengaged therefrom,substantially as and for the purposes set forth.

15. In a saw-set, the combination, with the bed, provided with a pair ofholding-jaws 5 and 6, of an anvil arranged and held in position betweensaid jaws, a saw-supporting table, a vibratory hammer, asupporting-frame 73 secured upon said jaw 6, and means on said frame 73for feeding each alternate saw-tooth above said anvil, consisting,essentially, of a bell-crank 89 pivotally arranged upon said bed of themachine, a pair of bell-cranks 77 pivotally arranged on said frame 73,connecting links between said bell-cranks 77 and 89, a spring-actuateddog 81 on each bell-crank 77 arranged to be forced in engagement with asaw-tooth and also to be disengaged therefrom, and an adjusting-screwconnecting said bell-crank 89' with the hammer for regulating the throwof each dog, substantially as and for the purposes set forth.

16. In a saw-set, the combination, with the bed, an anvil, and avibratory hammer, of means for actuating said hammer, comprising, ashaft, a chambered ratchet-wheel on said shaft having ratchet-teethadapted to engage a trip-pin on the hammer-arm, a disk 29 within saidchambered ratchet wheel, loosely arranged on said shaft, tooth likesteps within the chambered portion of said ratchet-wheel, and means onsaid disk in slidable engagement with said tooth-like steps foractuating the said shaft and the ratchet-wheel on said shaft,substantially as and for the purposes set forth.

17. In a saw-set, the combination, with the bed, an anvil, and avibratory hammer, of means for actuating said hammer, comprising, ashaft, a chambered ratchet-wheel on said shaft having ratchet-teethadapted to engage a trip-pin on the hammer-arm, a disk 29 within saidchambered ratchet-Wheel, loosely arranged on said shaft, tooth-likesteps within the chambered portion of said ratchet-wheel, and means onsaid disk in slidable engagement with said tooth-like steps foractuating the said shaft and the ratchet-wheel on said shaft,consisting, es-

sentially, of a spring-actuated stud in a socket in said disk 29, aflange on said disk, and a receiving-socket for a handle on said flange,substantially as and for the purposes set forth.

18. In a saw-set, the combination, with the bed, and anvil, of anupright on said bed, a vibratory hammer fulcrumed on a pivotal pin onvsaid post, means for actuating said hammer, a saw-supporting table, andmeans for feeding each alternate saw-tooth above the said anvil,consisting, essentially, of dogs adapted to engage said saw-teeth, asystem of bell-cranks with which said dogs are pivotally connected, andmeans connected with said hammer and said bell-cranks for actuating saidbell-cranks, substantially as and for the purposes set forth.

19. In a saw-set, the combination, with the bed, and anvil, of anupright on said bed, a vibratory hammer fulcrumed on a pivotal pin onsaid post, means for actuating said hammer, a saw-supporting table, andmeans for feeding each alternate saw-tooth above said anvil, consisting,essentially, of dogs adapted to engage said saw-teeth, a system ofbell-cranks with which said dogs are pivotally connected, and anadjusting means connected with said hammer, and said bellcranks foractuating said bell-cranks, and also regulating the throw of said dogs,substantially as and for the purposes set forth.

20. In asaw-set, the combination, with the bed, and anvil,-of an uprighton said bed, a vibratory hammer fulcrumed on a pivotal pin on said post,means for actuating. said hammer, a saw-supporting table, means forfeeding the saw-teeth above the anvil, a system of bell-cranks foractuating said sawtooth-feeding means, a nut on said hammer, and anadjusting-screw connected with said bell-cranks and the nut connectedwith said hammer, substantially as and for the purposes set forth.

In testimony that I claim the invention set forth above I have hereuntoset my hand this 12th day of March, 1901.

JOSEPH GOTTSMANN.

Witnesses:

FREDK. C. FRAENTZEL, GEO. D. RICHARDS.

